Improvement in window-sash fastenings



y UNITED STATES PATENT OFFICE.

IMPROVEMENT IN WINDOW-SASH FASTENINGS.v

Specification forming part of Letters Patent No. 38,462, dated May 12, 1863.

.To all whom it may concern,.-

Beit known that I, E. K. BREGKENRIDGE, of West Meriden, in the county of New Havenl and State of Connecticut, have invented a new and useful Improvement in Window- Sash Fastenings or Stops; and I do hereby declare that the following is a full, clear, and

exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a side view of my invention applied to a sash 5 Figs. 2 and 3, detached views of the two parts of the case of the same 5 Fig. 4, a detached view of the same, with the case bisected, as indicated by the line a: w, Fig. 1.

Similar letters of reference indicate corre` sponding parts in the several figures.

This invention relates to an improvement in that class of window-sash fastenings or stops which are composed ofv a pintle and spiral spring :fitted in one or both sides of the sash and so arranged that the spring will force the pintle into holes made in the sides of the window-frame, the holes being made in the latter at different points, so that the sash may be retained at a greater or less height as desired. The objection attending this class of sash fastenings or stops now in use is the tendency of the pintle under the action ofthe spring to enter each hole that it passes during the raising or lowering of the sash, which involvesthe necessity of holding back the pintle while raising or lowering the sash. This trouble is fully obviated by my invention, which, besides the advantage alluded to, also possesses advantages in the construction of the case in which the pintle is iitted or works, as hereinafter fully shown and described.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents a portion of one of the stiles of a window-sash; and B is a tube' or case of cylindrical form and composed of 'two equal longitudinal parts or halves, a a, of cast metal. Each half or part a is cast with a flange or bead, b, at one end, and at its outer side, and at the opposite end, is cast with a ange, c, projecting inward, as shown in Figs. 2, 3, and 4. Each half or part b has an oblong longitudinal slot, d, in it, at one end of which there is a lateral recess or notch, e, as shown in Figs. l, 2, and 3. These slots d may be formed in casting the halves or parts b.

O is a pintle or pin, the outer part, f, of

which is nearly in diameter to the interior of the tube or case. The other part, f f, of the pintle or pin is smaller in diameter than the part f, with the eXception of a shoulder, g, which is about equal indiameter to f, and has a pin, h, fitted in it of sufficient length to fit in either of the slots d. (See Fig. 4.) The other portion, f', of the pintle or pin has a shoulder, i, upon it, and this shoulder is at the outer end of the case B, as shown in Figs. 1 and 4. v

D is a spiral spring, which is placed on the part f of the pintle or pin and between the shoulder g and the flange c, as shown in Fig. 4. This spring has a tendency to keep the part f of the pintal or pin forced outward from the tube or case. This part j' of the pintle or pin catches into the holes in the windowframe and secures the sash in a closed state or at a greater or less height, as may be desired.

When the sash is to be raised, the operator draws back the pintle or pin C until the pin h of the shoulder d strikes the inner end of the slot d, and the pintle or pin is then turned so that the pin h may enter the recess or notch e, which will hold back the pintle or pin, as shown in red in Fig. l. With the pintle or pin thus held back, the sash may be raised without having the pin pressed against the window-frame, and without the continued application of the hand to the pintle or pin C, the pintle or pin being released at any time by turning it so as to bring the pin h out from the notch or recess e. The two parts or halves a a of the tube B are simply fitted together around the pintle or pin, and then driven snugly in the hole j in the sashstile.

The object in having each half or part a provided with a slot, d, is simply for the convenience of adjusting the pin h, which may be fitted in either of them. By having the tube or case B thus formed-to wit, cast in two longitudinal parts or halves-I obtain a strong and durable case, one which may be applied to the pintle or pin With the greatest facility and Without appreciably augmenting the cost of the manufacture of the fastening or stop.

The tube or case could not Well be cast cntire or in one piece, but by casting it in two parts it may be readily done, and answer equally as Well as if it were in one piece. Fastenings of this character usually have the tube made in one piece with one end of the tube riveted or pressed inward between shoulders upon the pintle, to prevent the latter from being driven out of the tube by the force ofthe spring. By having the tube made in two parts, as herein shown and described, all

fitting is dispensed with, because the pressure of the sides of the cavity into which the tube is driven suffices to keep the pintle, spring,

and tube always in proper position for effective operation together.

Having thus described my invention, I claim and desire to secure by Letters Patent, as an improved article of manufacture- A spring Window-fastener which has its pintle C provided With a projection or pin, h, and its case or tube B made in two parts and provided with a slot, d, and shoulder or recess, e, as herein shown and described, so that the pressure of the sides of the orifice into which the tube is driven Will sufee to keep the parts together in Working order, Without riveting or fitting, and so that the pintle on being Withdrawn and partially rotated Will remain Withdrawn until it is rotated in a contrary direction, all as set forth.

E. K. BREGKENRIDGE.

Witnesses:

WM. P. MORGAN, GEORGE W. SMITH. 

